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Ocean data for
our ocean future

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For the health of our oceans

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For the future of coastal communities

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For the growth of the blue economy

Canada’s nucleus for integrated ocean science and observing activities

The Canadian Integrated Ocean Observing System (CIOOS) engages locally, connects regionally, and coordinates nationally to elevate Canada’s ocean observing efforts to the international stage.

CIOOS data catalogue

Data Catalogue

Full collection of CIOOS’ partners ocean data. Use filters, keywords or Essential Ocean Variables (EOVs) to search, find and download the data you are looking for.

Explorateur données

Data Explorer

Interactive mapping tool for viewing and analysing ocean data. Filter, aggregate, and download just the data that meets your criteria.

Observe, explore and share knowledge to better understand our oceans

CIOOS provides a variety of resources to support research, data management and training. Guides, tools, technical documents and collaborative initiatives: these resources help disseminate best practices and strengthen Canada’s open ocean science community.

CIOOS is a national initiative that unites Canada’s oceanographic community to advance open, accessible, and interoperable ocean data for the benefit of all.

Recent news

Discover the latest news from CIOOS

OCTOBER 15, 2025

Connected by the Ocean: How Collaboration Is Powering Canada’s Data Future

Read the article
Get Involved

The oceans are changing, as are our needs for knowledge and collaboration.

CIOOS invites researchers, decision-makers and partners to join forces to advance ocean science.

CIOOS team is here to listen to your needs and discuss your projects. Whether you want to access data, collaborate on an initiative, or simply learn more about our services, we are here to support you and guide you towards the right tools, partners, and resources.

Frequently asked questions

What is CIOOS?

The Canadian Integrated Ocean Observing System (CIOOS) improves access and visibility to high quality ocean data and information. This is accomplished through our open-access platform that delivers observational and model data and associated metadata in a consistent format. CIOOS works to increase collaboration and coordination in the ocean observing community around the country while remaining regionally focused.

Who benefits from CIOOS?

CIOOS benefits both data providers and consumers across the ocean community. Academics, government agencies, ocean industries, coastal and Indigenous communities, and non-governmental organizations are key target audiences for data management services. That said, all Canadians will benefit from improved data access for decision makers and the tools that are developed from turning those data into information and knowledge for all.

Are Indigenous groups involved with CIOOS?

Yes! CIOOS has ongoing engagement and dialogue with Indigenous governments, organizations and communities. Together, we are exploring best practices for preservation of Indigenous ocean knowledge and data in ways that support Indigenous data sovereignty. CIOOS has adopted CARE (Collective benefit, Authority to control, Responsibility, and Ethics) Principles for Indigenous Data Governance. Contact us to become part of the conversation.

There are currently similar initiatives that also focus on collecting ocean data. How is CIOOS different?

CIOOS works to address fragmented and isolated Canadian data by creating an open-access platform that facilitates discovery of previously inaccessible and undiscoverable data to end-users on a national scale. This integrated approach helps to coordinate the national management of ocean data and, critically, is adaptable in the face of growing needs and a changing environment. Furthermore, the improved coordination of regional and national efforts within CIOOS contributes to global ocean observing, maximizing the overall benefit of integrated observing.

How is CIOOS funded?

CIOOS is primarily funded by Fisheries and Oceans Canada (DFO) and the Marine Environmental Observation and Prediction Network (MEOPAR). MEOPAR also hosts the CIOOS Coordination Office. We invite individuals, organizations, or businesses to contribute to CIOOS and join the collaboration. Be part of Canada’s ocean future and contact us ca for more information.

Is the use of CIOOS free of charge for data users? What about data providers?

CIOOS is free for data consumers. Data providers should engage with your Regional Association to discuss your data holdings and to assess the steps for integration.

Does CIOOS offer training?

Training opportunities are in development. Join our mailing list to be among the first to know when they will be delivered!

Will CIOOS expand its geographical scope?